#include <stdio.h>
int main()
{
	int a,b,c,t;
	scanf("%d %d %d",&a,&b,&c);
	if(a>=b){
		t=a;
		a=b;
		b=t;
	} 
		if(a>=c){
		t=a;
		a=c;
		c=t; 
	}
	if(b>=c){
		t=b;
		b=c;
		c=t;
	}

	printf("%d->%d->%d",a,b,c);
	return 0;
}
